Sash-lock.



H. w. COVERT.

SASH LOOK.

APPLIUATION FILED NOV.11,1908.

91 6,274, Y Patented Mar. 23, 1909.

2 SHEETS-SHEET 1.

QM. Xx

H. W. COVERT.

SASH LOOK.

nrmonxon rum) NOV. 11, 1908.

2 SHEETS-SHEET 2.

WI T NEjiE \WENT UR QM In: NORRIS PETERS co., WASHINGTON, n. c.

HENRY W. COVERT, OF WATERFORD, NEW YORK.

SASH-LOCK.

Specification of Letters Patent.

Patented March 23, 1909.

Application filed November 11, 1908. 4 Serial No. 162,147.

T 0 all whom it may concern:

Be it known that I, HENRY W. COVERT, a citizen of the United States,residing; at Waterford, county of Saratoga, and State of New York, haveinvented certain new and useful Improvements in Sash-Locks, of which thefollowing is a specification.

The invention relates to such improvements and consists of the novelconstruction and combination of parts hereinafter described andsubsequently claimed.

Reference may be had to the accompanying drawings, and the referencecharacters marked thereon, which form a part of this specification.Similar characters refer to similar parts in the several figurestherein.

The invention is shown in connection with a window-sash, but it isadapted for use as a lock or support in various structures pro.- videdwith a pair'of members, one movable vertically, relatively to the other.

The objects of the invention are to simplify and facilitate theoperation of the locking mechanism, and cheapen the construction.

The invention consists of a catch movably mounted upon a stationarymember, and adapted to be projected across and beyond the path of themovable member, a stop on the movable member adapted to engage the catchand secure the movable member in a closed position, and lock it againstupward movement, and a stop upon the stationary member on that side ofthe path of the movable member opposite the catch, adapted to engage thecatch when projected. across and beyond the path of the movable member,and thereby lock the movable member, when in an elevated position,against downward movement; also a stop on the stationary member belowthe pivot of a catch pivotally mounted upon such stationary member, toafford additional support for the pivoted end of the catch when thecatch is swung across the path of the movable member into engagementwith a stop on the stationary member on the opposite side of such path,as hereinafter more fully described and subsequently pointed out in theclaims.

Referring to the drawings: Figure is a view in perspective, showingparts of a win (low-sash and frame with the sash locked in a closedposition. Fig. 2 is a similar view, showing the sash in an elevated andunlocked position. Fig. 3 is a view in perspec tive of the catch shownin the other figures detached. F ig. 4 is a view. partly in section, andpartly in elevation, showing a vertical section of the sash andwindow-sill and the frame in elevation.

The sash, 1, is movable vertically in the groove, 2, formed in theupright portion of the window-frame, 3, the sill of the frame beingshown at l. The catch, 6, provided with the thumb-piece, 7pivot-aperture, 8, and head, 9, is secured to the stationary member orframe, 3, on one side of the path, 2, of the movable sash by means of apivot screw, 10, passed through the pivot-aperture, 8, and inserted inthe frame.

in Fig. 1, the catch is shown in position to lock the sash in a closedposition, the head of the catch being inserted in a recess, 12, formedin the movable member, and adapted to receive the head. The bottom ofthe recess forms an abutment or stop, 14, upon which the head of thecatch bears to hold the sash in a locked position until the catch isremoved therefrom. The relative positions of the catch and stop areshown by dotted lines in Fig. l.

T 0 support the sash in an elevated or open position, as, for example,in the position shown in Fig. f, it is only necessary to unlock the sashfrom the position shown in Fig. 1, by disengaging the catch from thesash, and raise the sash above the catch, whereupon the catch will beswung across the path of the sashinto the recess, 15, formed in thestationary member or wind 1 wframe on that side of the path of the sashopposite the catch-pivot, and engage the bottom of the recess whichforms an abutment or stop, 16, the head of the catch resting upon thestop. The catch can be pushed over by hand when it does not fall bygravity, or a spring may be employed. The spring shown consists of athin strip of steel, 17, secured at one end to the body of the catch, asby screw,

1 18, so that the other end of the spring will bear against the wall,20, of the recess, 21, formed in the window-frame, in which the catch ispivot-ally secured. A plurality of similar catches may be provided onthe stationary member, to secure the sash in differing open positions.Only two are shown on the drawings. The upper catch, 30, is adapted tolet the sash slide up and down until the sash is moved above such.catch, when the catch falls by gravity and swings across the path of thesash to the position shown by dotted lines in Fig. 4, the head ofI'BCESS O1 stop may the catch resting upon the stop, 31, which, asshown, is the bottom of recess, 32, in thestationary member, and thepivoted end of the catch resting upon the stop, 33, which, as shown, isthe bottom of the recess, 34, formed in the stationary member, wherebyboth ends of the catch are firmly supported by stops located on oppositesides of the path of the sash, so that the weight of the sash issupported by such bearings independently of the pivot 35. This isespecially important in view of the fact that the sash is frequentlyallowed to fall some little distance, and, it the pivot-end of the catchwas supported by the pivot only, the support would soon be destroyed orrendered worthless. Vv hen desired, the catch, 30, may be provided withan actuating spring similar to spring, '17, and with a thumbpiecesimilar to thumb-piece 7 t is obvious that the head of the catch may behookshaped, as indicated by dotted line, 40, in Fig.

be inclined to correspond with the incline of the hook, as indicated bydotted line, 41, in Fig. 4, thereby preventing the parts from beingunlocked by an upward pressure on the movable sash,'until the catch hasbeen withdrawn by other means from the stop.

W' hat I claim as new and desire to secure by Letters Patent is- 1. In adevice of the class described, and in combination, a pair of members,one movable vertically, relatively to the other; a

catch movably supported by the stationary member, and adapted to beprojected across and beyond the path or the movable memher; a stop onthe movable member engageable with the catch for locking the movablemember against an upward movement; an abutment on the stationary memberadapted to be engaged by the catch, when projected across the path ofthe movable member, and

a, and the bottom of the 1 lock such member against a downward movement;and means for projecting the catch across the path of the movable memberwhen such member is moved above the catch.

2. In a device of the class described, and in combination, a pair or"members, one movable vertically, relatively to the other; a catchpivotally mounted upon the stationary member, and adapted to be swungacross and beyond the path of the movable member; a stop on the movablemember engageable with the catch for locking the movable member againstan upward movement; an abutment on the stationar member adapted to beengaged by the catch when swung across the path of the movable member,and lock such member against a down vard movement; and means forswinging the catch across the path of the movable member when suchmember is moved above the catch.

3. in a device of the class described, and in combination, a pair ofmembers, one movable vertically, relatively to the other; a catchpivotally mounted upon the stationary member on one side of the path oithe movable member, and adapted to be swung across and beyond such path;a stop on the stationary member on that side of the path of the movablemember opposite the catch, adapted to be engaged by the catch when thelatter is swung across the path of the movable member; and means forswinging the catch across such path when the movable member has beenraised above the catch.

in testimony whereof, l have hereunto set my hand this 10th day of Nov,1908.

HENRY W. GGVElFJl.

Witnesses J. DONSBAOH, L. G. KENNEDY,

